Perhaps you should try some spelling variations:
cua viet » ca viet, hoa viet, cua vat
hanh lam » thanh lap, hanh kem, hanh va
dinh lam » dinh van, tinh lao
chat cuu » chat huu, chat cua, cham cuu
hieu va » lieu va, hieu qua
va chat » van chat, va phat, cao chat
ty nang » ty xang, ty hang, ly nang
so sanh » do sanh
cuu va » cuu van, cuu ve

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: so sanh ((ty nang) OR (ky nang)) xa hoi. hieu va chat cuu va ((dinh lam) or (hanh lam)) cua viet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: so sanh ((ty nang) OR (ky nang)) xa hoi. hieu va chat cuu va ((dinh lam) OR (hanh lam)) cua viet.
• The words AND, OR and NOT may confuse the search; try adding quotes: "so sanh ((ty nang) OR (ky nang)) xa hoi. hieu va chat cuu va ((dinh lam) or (hanh lam)) cua viet".
• Adding a wildcard symbol may retrieve word variants: so sanh ((ty nang) OR (ky nang)) xa hoi. hieu va chat cuu va ((dinh lam) or (hanh lam)) cua viet*.